On Sun, Jun 22, 2025 at 6:30 PM Damian Tometzki <damian@xxxxxxxxxxxxxx> wrote: > > Hi Miri, > Hi all, > > with v6.16-rc2 I consistently hit a Wi-Fi firmware crash on a > Lenovo ThinkPad X1 Carbon Gen 9. > > Hardware / FW > ------------- > * NIC : Intel Wi-Fi 6 AX201 160 MHz (PCI ID a0f0:0070, rev 0x351) > * FW : 77.864baa2e.0 QuZ-a0-hr-b0-77.ucode (auto-loaded) > * BIOS : N32ET96W (1.72) > * Platform: 20XWCTO1WW > > Kernel: 6.16.0-rc2 #440 PREEMPT(lazy) > > Symptoms > -------- > Immediately after NetworkManager (or plain `ip link set wlp0s20f3 up`) > the driver warns: > > WARNING at drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c:37 > iwl_mvm_mld_mac_ctxt_cmd_common+0x175/0x1d0 > > The firmware then aborts: > > FW error in SYNC CMD MAC_CONFIG_CMD > NMI_INTERRUPT_UMAC_FATAL > ADVANCED_SYSASSERT 0x20103126 > Microcode SW error detected. Restarting 0x0. > > The cycle repeats every few seconds; the interface never becomes usable. > Full dmesg attached. > > -- > VG > Demian Tometzki Hi together, I identified commit 83f3ac2848b46e3e5af5d06b5f176c as the cause of the issue. After reverting it, the system is working again. Best regards Damian
